| 21. | Red arrows indicate net movement of K + due to the membrane potential.
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| 22. | Thus the membrane potential will not be right at " E"
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| 23. | Voltage-sensitive sodium channels become persistently active at the resting membrane potential.
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| 24. | Note that the ionic charge determines the sign of the membrane potential contribution.
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| 25. | Thus membrane potential ( voltage across the membrane ) lags behind current injections.
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| 26. | Neurons produce action potentials when their membrane potential increases past a critical threshold.
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| 27. | Where x represents the membrane potential of the neuron.
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| 28. | Alt = Plot of membrane potential versus time.
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| 29. | This potassium conductance eventually drops and the cell returns to its resting membrane potential.
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| 30. | This outward potassium current causes a small dip in membrane potential shortly after depolarization.
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